These professional knobs are practical and durable for long-lasting use. With fine workmanship and no burrs, they are lightweight, easy to carry, and simple to use. Ideal for potentiometer knobs and volume control knobs on sound equipment. Features Color: Black Material: ABS Size: 2.30 x 2.30 x 1.40 cm / 0.90 x 0.90 x 0.55 in Made from selected ABS material, resistant to deformation and breakage. Simple and practical design. Easy to install, resistant to aging, made of solid material for durability and corrosion resistance. Designed to connect with rotary potentiometers, commonly used for volume control. Features a simple structure that allows for easy installation without affecting instrument performance. Suitable for use with potentiometers, guitar effects, guitar amplifiers, speakers, and more. A great choice for guitar enthusiasts. Package List 10 x Knobs